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Old 07-09-10, 09:21 AM   #11
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Join Date: Aug 2005
Posts: 9
Default Re: Always Tearing on 8600 GTS

Hi mocharhw,

Thanks for the reply. I've had a shot of what you've suggested but with no joy. Tried all the combinations I could think of as well. Disabling composite stops the game I was running from displaying at all so couldn't test it, but a lesser version could be seen in Open Arena still. Triple buffering on and off makes no noticeable difference. You can see from glxgears that it thinks it's synced.

$ glxgears 
Running synchronized to the vertical refresh.  The framerate should be
approximately the same as the monitor refresh rate.
303 frames in 5.0 seconds = 60.415 FPS
301 frames in 5.0 seconds = 60.021 FPS
301 frames in 5.0 seconds = 60.017 FPS
And from some other output it appears that it is showing roughly the same refresh as my monitor (no sure why xrandr is showing 50Hz???):

$ xrandr 
Screen 0: minimum 320 x 240, current 1280 x 1024, maximum 1280 x 1024
default connected 1280x1024+0+0 0mm x 0mm
   1280x1024      50.0*    51.0  
   1280x960       52.0  
   1152x864       53.0  
   1024x768       54.0     55.0     56.0  
   832x624        57.0  
   800x600        58.0     59.0     60.0     61.0  
   700x525        62.0  
   640x480        63.0     64.0     65.0     66.0     67.0  
   512x384        68.0     69.0  
   400x300        70.0  
   320x240        71.0     72.0

And the monitor's OSD shows V Refresh of 60.0Hz.

In terms of what is to be seen in the video there's no interlacing on the video but you may be taking about the fact the monitor is picked up a bit weirdly on my camera (there's kind of the appearance of diagonal lines). But the tearing I'm talking about is vertical on the monitor and can be seen in the video when it's moving (especially round the light at the start). It's not as stable as the tearing in the game so it's easier to miss.
mikeym is offline   Reply With Quote